In his Instagram post, Pratt talks about long, sleepless days of filming and the gratitude he feels for being able to do what he loves. But it wasn’t always that way [emphasis mine]:

I felt like posting this to say to anyone out there chasing your dream... Fifteen years ago I felt the same passion I feel today, but I had very little opportunity. I had to hustle hard and go hungry. I had to eat sardines and figure out how to get gas money. And I never had a plan B. I never stopped believing. Ever. Don’t give up. Apply constant pressure for as long as it takes. It will break before you do. Go get it.

Maybe not everyone will get to his level of success, but whatever field you’re in, the point is: Persist.